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Description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix possible map leak in fastrpc_put_args copy_to_user() failure would cause an early return without cleaning up the fdlist, which has been updated by the DSP. This could lead to map leak. Fix this by redirecting to a cleanup path on failure, ensuring that all mapped buffers are properly released before returning.

PUBLISHED Reserved 2025-04-16 | Published 2025-10-28 | Updated 2025-10-28 | Assigner Linux

Product status

Default status
unaffected

c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 (git) before a085658264d0c8d4f795d4631f77d7289a021de9
affected

c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 (git) before 3ad42dc66445df6977cf4be0c06f1a655299ce6c
affected

c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 (git) before 78d33a041555db03903e8037fd053ed74fbd88cb
affected

c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 (git) before c000f65f0ac93d9f9cc69a230d372f6ca93e4879
affected

c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 (git) before da1ba64176e0138f2bfa96f9e43e8c3640d01e1e
affected

Default status
affected

5.1
affected

Any version before 5.1
unaffected

6.1.156 (semver)
unaffected

6.6.112 (semver)
unaffected

6.12.53 (semver)
unaffected

6.17.3 (semver)
unaffected

6.18-rc1 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/a085658264d0c8d4f795d4631f77d7289a021de9

git.kernel.org/...c/3ad42dc66445df6977cf4be0c06f1a655299ce6c

git.kernel.org/...c/78d33a041555db03903e8037fd053ed74fbd88cb

git.kernel.org/...c/c000f65f0ac93d9f9cc69a230d372f6ca93e4879

git.kernel.org/...c/da1ba64176e0138f2bfa96f9e43e8c3640d01e1e

cve.org (CVE-2025-40036)

nvd.nist.gov (CVE-2025-40036)

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